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dfd611aeac
These models have been particularly designed for use in the VoF solvers, both incompressible and compressible. Currently constant and temperature dependent surface tension models are provided but it easy to write models in which the surface tension is evaluated from any fields held by the mesh database.
155 lines
4.3 KiB
C++
155 lines
4.3 KiB
C++
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2011-2017 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Class
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Foam::interfaceProperties
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Description
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Contains the interface properties.
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Properties to aid interFoam:
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-# Correct the alpha boundary condition for dynamic contact angle.
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-# Calculate interface curvature.
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SourceFiles
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interfaceProperties.C
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\*---------------------------------------------------------------------------*/
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#ifndef interfaceProperties_H
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#define interfaceProperties_H
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#include "IOdictionary.H"
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#include "surfaceTensionModel.H"
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#include "volFields.H"
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#include "surfaceFields.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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/*---------------------------------------------------------------------------*\
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Class interfaceProperties Declaration
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\*---------------------------------------------------------------------------*/
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class interfaceProperties
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{
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// Private data
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//- Keep a reference to the transportProperties dictionary
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const dictionary& transportPropertiesDict_;
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//- Compression coefficient
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scalar cAlpha_;
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//- Surface tension
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autoPtr<surfaceTensionModel> sigmaPtr_;
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//- Stabilisation for normalisation of the interface normal
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const dimensionedScalar deltaN_;
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const volScalarField& alpha1_;
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const volVectorField& U_;
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surfaceScalarField nHatf_;
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volScalarField K_;
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// Private Member Functions
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//- Disallow default bitwise copy construct and assignment
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interfaceProperties(const interfaceProperties&);
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void operator=(const interfaceProperties&);
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//- Correction for the boundary condition on the unit normal nHat on
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// walls to produce the correct contact dynamic angle
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// calculated from the component of U parallel to the wall
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void correctContactAngle
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(
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surfaceVectorField::Boundary& nHat,
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const surfaceVectorField::Boundary& gradAlphaf
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) const;
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//- Re-calculate the interface curvature
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void calculateK();
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public:
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//- Conversion factor for degrees into radians
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static const scalar convertToRad;
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// Constructors
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//- Construct from volume fraction field gamma and IOdictionary
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interfaceProperties
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(
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const volScalarField& alpha1,
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const volVectorField& U,
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const IOdictionary&
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);
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// Member Functions
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scalar cAlpha() const
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{
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return cAlpha_;
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}
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const dimensionedScalar& deltaN() const
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{
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return deltaN_;
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}
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const surfaceScalarField& nHatf() const
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{
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return nHatf_;
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}
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tmp<volScalarField> sigmaK() const;
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tmp<surfaceScalarField> surfaceTensionForce() const;
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//- Indicator of the proximity of the interface
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// Field values are 1 near and 0 away for the interface.
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tmp<volScalarField> nearInterface() const;
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void correct();
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//- Read transportProperties dictionary
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bool read();
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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